I have two desktop tower computers with two hard drives in each of them. One runs 64 bit linux Mint 17 and 64 bit Windows 7 Home Premium. The other one runs 64 bit linux Mint 17.1 and 64 bit Windows 7 Ultimate. Both linux distros use the Xfce desktop environment.

Both linux Mint systems updated Flash yesterday via the Update Manager and they use the same Flash version. The linux Flash version is (11.2.202.451). I also have Nvidia graphics cards in both desktop computers and they use the same linux Nvidia proprietary driver which is (331.113).

I'm not experiencing any flickering problems on pages with flash objects on either desktop computer using Mint 17 or (17.1).